CVE-2026-6250

Authenticated Format String Injection on TP-Link Tapo C110

HIGH
8.1
CVSS Score
Published: June 11, 2026 at 08:46 PM UTC
Updated: October 26, 2026 at 11:10 AM UTC
2 products affected across 1 vendorTapo C110 FirmwareLink Tapo C110· also runs on 1 platform

Using Tapo C110 v2 by TP-Link Systems Inc.?

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Severity
HIGH8.1
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

An authenticated format string vulnerability exists in the ONVIF service of Tapo C110 v2 due to improper handling of user-controlled input.  Externally controlled data is interpreted as a format string, which can be used to manipulate stack memory, including control flow data such as return addresses. A remote authenticated attacker may redirect execution flow to existing internal functions, triggering an unauthorized factory reset, leading to loss of configuration, deletion of stored credentials and service disruption.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.5.4
Affected range stops below 1.5.4, so it looks safe — our inference, not a vendor statement
tp-link-tapo-c110 (same device)
v < 1.5.4 Build 260428
Affected range stops below 1.5.4 Build 260428, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-134

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